3/32" dia. shanks are the jeweler's preferred standard for burs and small rotary tools. They fit the adjustable chucks found on most flexshaft handpieces as well as 3/32" handpiece collets.

Cone Burs have tapered sides that come to a point at their tip. They're used for enlarging and deburring holes and for repositioningflush settings before refining the seat. Also available with round or flat ends.

Diamond Burs/Points are made from steel that has diamond particles permanently bonded to the outside. They are ideal for carving glass, stone, ceramic, and metal. They must be used with water or another lubricant.